Radio interferometry requires a firm mathematical background. Luckily, this background is rather limited and well understandable if we assume some background in calculus and algebra. In this chapter, we give an overview of the mathematical definitions and formulae used throughout this book. Much of the approach taken here is based on the one assumed by Ulrich Klein und Jürgen Kerp in their Introductory Radio astronomy techniques script at AIfA (Univ. Bonn).
It should be pointed out that learning the mathematics presented here is not in vain, even when interferometry will not turn up again in the reader's career. In any description of measurements and especially digitization all the groundwork presented here will reoccur.
Editors notes: Did not edit above 2.10. Please assign another editor.
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